Spool



July 24, 1928. 1,677,951

' -H. BRUCKER SPOOL Filed June 17, 1926 INVENTOR M Patented July 24, 1928.

UNITED STATES PATENT OFFICE.

HENRY BRUCKER, OF NEWARK, NEW JERSEY, ASSIGNOB T0 AMERICAN ALUMINUM WARE COMPANY, A CORPORATION OF NEW JERSEY.

SPOOL.

Application filed June 17,

This invention relates to spools or reels and more particularly to .spools or reels formed of sheet metal or other material which may be stamped or bent, for example celluloid.

I One object of the invention is to provide a spool or reel embodying novel and improved features of construction whereby the spool can be easily and economically manufactured, will be strong and durable and at the same time light in weight.

Another object is to provide such a spool or reel comprising two identical tubular body sections constructed to be arranged end to end in axial alinement to form a drum or the body of the spool and end flanges, and a tie tube or tubular rivet passing through said tubular body sections with its ends upset or flared outwardly over theouter ends of said body sections to secure them together.

A further object is to provide a novel and improved tie tube or tubular rivet whereby great strength and resistance to the separation of said body sections are obtained.

Further objects are to provide a spool or reel of the character described wherein the tie tube or tubular rivet has its ends turned or upset outwardly to form flanges overlying the corresponding ends of the body sections and having different portions in difl'erent planes whereby the flanges effectively resist strains transverse thereof such as incident to axial strains tending to separate said body sections; to providea tie tube or rivet in such a spool or reel having its ends turned outwardly or upset and corrugated so that portion-s of said flanges are disposed edgewise or at an inclination to the corresponding ends of the body sections, and to obtain other results and advantages as may be brought out by the following description.

Referring to the accompanying drawings, in which corresponding and like parts are designated throughout the several views by the same reference characters,

Figure-1 is a composite longitudinal sectional view and side elevation of a spool embodying the invention; 7

Figure 2 is an end elevation of the spool;

Figure 3 is an end elevation of the spool with the cover or end. plate removed;

Figure 4 is a fragmentary longitudinal vertical sectional view of,a modified form of 1926. Serial No. 116,586.

the1 invention with the end plate removed, an

. Figure 5 is an end view of the spool shown 1n Figure 4.

Specifically describing the embodiment of the invention illustrated inigures l to 4 inclusive, the reference characters 1 designate two identical body sections formed of sheet metal and each comprising a cylindrical tubular shank 2 having an annular flange 3"at one end. These body sections 1 are arranged with the ends of the shanks abutting each other and in axial alinement so that the shankstogether form a drum or body for the material to be wound on the spool and the flanges 3 serve to hold the material against endwise displacement from the body or drum. These body sections can be easily and quickly formed from one piece of metal or like material, by a spinning or a die stamping operation.

A tie tube or tubular rivet 5 extends through the body sections 1 and has its ends upset or turned outwardly to form end flanges 6 overlying the end flange of the corresponding body section 1, said tie tube thus serving to hold the body sections together. Preferably the tie tube is of a diameter to neatly fit into the shanks of the body sections 1 and is formed of a sheet of metal rolled into tubular form for simplicity and cheapness in manufacture. Theend flanges 6 of the tie tube are corrugated or otherwise formed to provide different portions in different planes, for example portions 7 and 8, and preferably certain portions, as the portions 7 are edgewise or at an angle to the flanges 3 of the body sections. The flanges 6 may be formed by any suitable apparatus and are pressed tightly against the corresponding flanges of the body sections as shown in Figure 1 of the drawings, where the tie tube is shown in longitudinal vertical section and in side elevation at the right-hand and left-hand sides of the figure, respectively. With this construction, the spool can be cheaply manufactured and easily and quickly assembled, and the end flanges 6 on the tie tube are strong and effectively withstand strains as tend to bend them inwardly, for example such strains as are incident to axial separation of the body sections 1.

- For producing a finished and neat appearance, end plates 9 are applied to the body sections 1 and secured beneath inturned edges 4 on the flanges 3 of the body sections, the end plates of course being properly located before the edges 4 are bent inwardly. The end plates are preferably provided with projections 10" on their inner sides to bear upon the end flanges 6 of the tie tube both to reenforce the end plates and to further restrain outward bending of the flanges 6. The projections 10 may be formed by stamping annular ribs on the plates concentric with and of a diameter corresponding to thefiange 6.

A modified form of the invention is shown in Figures 4 and 5 of the drawings, wherein the end flanges on the tie tube or tubular rivet are plain or fiat as indicated at 11, said flanges being formed by merely bending the ends of the tie tube outwardly and pressing them against the corresponding ends of the body sections. This construction is suitable for small spools and .those intended for use with light material.

The manufactureand assembly of this construction is identical with that of the spool shown in Figures 1-4, inclusive, except for the end flanges 11.

Obviously the details of construction herein illustrated and described may be widely modified and changed by those skilled in the art without departing from the spirit or scope of the invention, and therefore I do not desire to be understood as limiting my self in the construction and use of the invention except as required by the following claim when construed in the light of the prior art.

Having thus described the invention, what I claim 1s:

A spool comprising two tubular body sections arranged co-axially end to end to form a drum, and a tie tube passing through said body sections and having its ends upset or turned outwardly to form flanges overlying the corresponding ends of said body sec tion, said flanges being corrugated.

HENRY BRUCKER. 

